cornell



V F. G. CORNELL JR HEAUXCHANGE DEVICE 2 Sheets-Sheet 1 July 14, 1931.

Original Filed ApIli 9, 1929 ATTORNEY municate with the other set of tubes within the same pipe. At-theirother ends, the tubes 14 communicate with passageways in a fittin 22 which engages the plug 15. Each fitting has two passageways and half of the tubes 14 communicate with one passageway and the other half with the remaining passageway. Conduits 23 provide communication between one passageway of one fitting one passageway of the top fittn inlet to the tube or vice versa.

22 and a passageway of another fitting 22. The conduits 23 are held with their ends engaging the'ends of the passageways in the ttings 22 by a yoke 24 pivoted to a bar or stra 25 which is carried by the adjacent hea ers. One passageway of the bottom fitting 22 acts as an outlet from the tubes, while acts as an he headers and plugs constitute caps for the ends of the p pes. y

Mllk or other liquid product to be cooled or heated is introduced into the tubesthrough the inlet and is 'first caused to pass out and back through the tubes in the to ipe. The milk passes out through one hal o the tubes and into the chamber formed by the cap 21 from whence it flows back throu h the remalnlng group of tubes and is t en transmilk or other ferred by means of the conduit 23 to a group of tubes in the next lower ipe and so on until the milk is eventually discharged from --the outlet. The heating or cooling fluid is introduced into the bottom sleeve 12" throu h an inlet 26 and is caused to flow through t e bottom pipe, then into the next upper pipe by passageway 13 and so on until it reaches the outlet 27 in the top sleeve 12' from'which it is discharged from the apparatus or the direction of circulation may be reversed. Theuse of'a large number of small tubes for the milk providesa large heat .exchan e surface and causes the milk to flow at a su cientlyhigh velocit .to prevent scorching of the dead cores of milk are prevented due to the of tubes before entering another group whic insures uniform treatment. p

1 Expansion or contraction of the tubes 14 does notproduce any harmful strains on the apparatus. This is due to the fact that the headers are slidably mounted on the pipes' 10.. As the tubes 14 expand, the plugs 15-and 16 tend to move to the left and right and exert apull on the yokes 24. This pull, instead of putting a strain on the apparatus merely'is efiective toslid'e the headers 12 and sleeves 12 on the pipe 10. When the tubes contract, the plugs exert ressure through the rings 18' and the hea ersvand tend to return the same to normal position and maintain the yokes 24 in clamping relationshi to the coni duits 23. Because of the full tionship of the headers to the pipes, there is oating relasleeves and the pipes.

armfulaction on it- Also,

the passage of steam through the same.

In the modification disclosed in Figs. 5, 6

and 7, a plurality of parallel pipes 30 are sup- I ported by standards 31 and are serially connected by headers '32 provided with passage: ways 33 connecting the bores in which the corresponding'ends of a pair of pipes 30 are received. The free ends of the top and bot tom pipes are provided with inlet and outlet; sleeves 32'. through'each pipe 30, the ends of the tubes being inserted and fixed in apertures in plugs 35 and 36 which close the bores in the headers 32 and 32. Around each plug there is pro vided a gland 37 which bears against a gasket 38 and'ring 38' thereby forming a tight joint between the plug and header or sleeve in which it is arranged. Glands 39 surround the ipes 30 and are threaded into the bores of die headers 32 and sleeves 32'.

Return bend conduits 41 provide communication between the cluster of'tubes in one pipe and the cluster of tubes in the next pipe. 'The ends of the confrom the tubes 34. The sleeves 32 are provided with ports 44 through which the cool- A cluster of tubes 34 extends These glands compress packings 40, thereby pro-' ucing a tight joint between the headers and.

duit 41 have their ends engaging the plugs Y ing or heating fluid is introduced into and 1 discharged from the apparatus.

In this form of apparatus expansion or contraction of the tubes 34 does not roduce any harmful eifect. Expansion of t e tubes 34 causes the plugs 35 and 36 to tend to move apart and thus'exert a pull on the yokes 42. This pull, instead of being a strain on'the ap. paratus merely is efl'ective to slide the headers 32 on the pipes 30. When the tubes contact the plugs exert pressure through the gland a and rings-andtend to return the headers to normal position and maintain the yokes 42 in clamping relationship to the conduits 41.

Because of'the full-floating relationship of the headers to the pipes, there is no opportunity for injury to the apparatus b reason of the contraction and expansion of the tubes. This type of apparatus, as well as the type formerly described, is simple, inexpensive and eflicient in" heat transfer as well as being capable of being easily, quickly and efiiciently sterilized by passage of steam'through the same. Although the invention has been disclosed as a multiple pipe apparatus, it is apparent that it maybe embodied in a simple pipe apparatus. g

It is, of course, understood that various other changes may be made in the structure. above described, without in any way departing from the spirit of the invention as defined in the appended claims.

1. A device of the character described comprising a plurality of pipes, a cluster of tubes in each pipe,-headers connecting in pairs corresponding ends of adjacent pipes, eachheader slidably receiving and sealing said.

ends, plugs sealing said headers and having apertures within which are fixed the ends of said tubes, passageways in said headers connecting the pipes, and conduits having their ends engaging corresponding plugs of adjacent pipes for providing communication between the tubes.

2. A device of the character described comprising a plurality of pipes, a cluster of tubes in each pipe, headers providing communication between corresponding ends of adjacent pipes in pairs, said headers having bores in which the ends of said pipes are. slidably sealed and passageways connecting said bores, plugs sealin said bores and having apertures within w ich are fixed the ends of said tubes, return bend conduits having their ends engaging plugs in adjacent ipes, and means supported by said headers ibr clamping said'conduits in position? 3. A device of the character described com- 2 prising a plurality of pipes, a cluster of tubes in each plpe, headers connecting in pairs corresponding ends of adjacent plpes, each header slidably receiving and sealing said ends, plugs sealing said headers and having apertures within which are fixed the ends of said tubes, conduits having their ends engaging said plugs and providing communication between tubes .of adjacent pipes, passageways in said headers connecting the pipes, and means supported bysaid headers for clamping said conduits in position.

4. In a device of the character described, a pipe, a plurality of tubes therein, fittings at the ends of said pipe, each fitting having a bore ,in which one end of the pi e isslidabl received, plugs mounted in sald fittings an having apertures within which are fined the ends of said tubes, a conduit engagingone of said plugs, and means supported by a fittinifor clamping said conduit to said plug. 5. device of the character described com prising a plurality of pipes, a plurality' of .tubes in eachv pipe, headers connecting .in

pairs the corresponding ends of adjacent pipes, each header having bores in which ends ofsaid pipes are slidably sealed, plugs mounted in said headers and having apertures within which are fixed the ends of said tubes, conduits having their ends engaging said plugsandprovidingciommunication between tubes in adjacent pipes, passages in the headers connecting said bores, and means supported by said headers'for clamping said conduits in position.

e 6. In a device of the character described,

a pipe, a plurality of tubes in said pipe, fittings'slidably receiving and sealing the ends of said pipe, and plugs mounted in said fittings, said plugs having apertures within which are fixed the ends of'said tubes.

7. A device of the character described comprising a plurality of substantially parallel pipes, a plurality of tubes in each pipe, caps slidably sealing the ends of said pipes,

said caps having-passages connecting said pipes in series and apertures within which are fixed the ends of said tubes, and conduits having their ends engaging said caps to provide communication between tubes in ad j acent pipes.

8. A- device of the character described comprising aplurali'ty of substantially parallel pipes, a plurality of tubes in each pipe, caps slidably sealing the ends of said pipes, said caps having passages connecting the pipes in series and apertures within which are fixed the ends of said tubes, conduits having their ends engaging said caps to provide communication between tubes; of adj acent pipes, and means supported by :said

caps for clamping said conduits in position.

9. 'In a device of the character described,

a plurality of substantially parallel pipes,

a plurality of tubes in each pipe, said pipes having caps slidably. sealing the same at one end, saidcaps having apertures in which are fixed the ends of said tubes and passages connecting said pipes in series, and conduits leading between the ends of tubes in ad'- j'acent pipes. A

10; In a device of the character described,

a pluralits of substantially parallel-pipes, a plurality of tubes in each pipe, said pipes having caps slidably sealing the same at one end, said caps having apertures in which are fixed the ends of said tubes and passa es con-' necting said pipes in series,'conduits eading between the ends of tubes in'adjacent. pipes, and means supported by said caps for clamp.-

ing said conduits in position.

11. A device of the character described comprising .a plurality of parallel pipes, headers slidably connected to the ends ofsaid pipes, a cluster of tubes in each pipe, said tubes having their ends rigidly connected to said headers, and passageways connecting corresponding ends of tubes in adjacentipes. Y P 12. Afdevice of the character described comprising a lurality of parallel pipes, headers having res in which the pipe ends are slidably sealed, a cluster of. tubes in each pipe, said tubes having their ends rigidly connected to said headers, and passageways connecting corresponding ends of tubes in adjacent pipes.

13. A device of the character described comprising a plurality of arallel pipes, headers slidably connected to t e ends of said ipes, a cluster of tubes in each pipe,- said eaders having apertures within which are fixedthe ,ends of said tubes, and passageways connecting, corresponding ends of tubes in adjacent pipes. i

14. A device of the chgracter diascribed comprising a plurality o paralle pi s, I headers slidably connected to the ends of the pipes, a cluster of tubes in each pipe, plugs in said headers and shavin apertures within which are fixed the ends 0 the tubes, and passa eways connecting corresponding ends of tu s in adjacent pipes.

15. A device of the character described comprising a pair of parallel pipes, a header .jslidably connected to corresponding erids of said pipes, tubes in said pipes, said tubes having their ends. rigidly connected to said headerand a passageway connecting corre- I 95 sponding ends of said tubes. .16. A device of the character described comprising a pair of parallel pi es, a header slidably connected to correspon in ends of v said pipes, tubes in said pipes,.sa1d header having apertures within which the tube ends 7 are fixed, and means'connecting correspond a ing ends of said tubes. 17.'A device of the character described comprising a pail-of parallel pipes,.headers slidably connected to corresponding. ends of said pipes and connectingthe same in series, tubes in saidpipes, said tubes their ends rigidly connected to said header, and means connecting corresponding ends of said i 18.- A device of the character described comprising parallel pipes, headers slidably connected to the ends of 'said pipw and c011-v I necting' pairs thereof in series, tubes in said a f pipes, said tubes having their ends rigidly connected to said headers, and means connecting corresponding ends of tubesin adjacent pipes. 1 I A 19. A deviceof the character described comprising a pipe, a cap slidably sealingan end thereof, and a tube in said pipe having J an end rigidl connected to said cap. a

20. A'device of the character described comprising parallel p'ipes, headers slidably 55 connected tothe'ends of said pipes and connecting pairs thereof in series, atube in each pipe having its ends rigidly connected to said eaders, and 'means providing communica tion between corresponding ends of tubes in adjacent pipes. i

In testimony whereof, I have 's igned my name to this specification.

. FRITZ c. CORNELL, JR. as 

